I just went through this, my motor would fatten out at 5100 rpm. Called Cody and discussed and he ask about vr 4000 and mine was like a 1.5* off (lower than handheld)
So I set it to 1.5* WRONG. You are suppose to add it to the 17.6 to bring timing light damper up computer time. I think in my case I was pulling out 16* or so after 4000 rpm.
Snow around now have wait for this to dry up to road test.